The bottom line is that you can't fly a bunch of planes around an airspace without losing a few, and the people who build and fly these planes know this. Secon

The bottom line is that you can't fly a bunch of planes around an airspace without losing a few, and the people who build and fly these planes know this. Second, the technology behind bare-bones drone surveillance isn't that special. For $250 you can get an "FPV" remote control plane (first-person view) that lets you fly around and see a real-time video-feed from the plane. Of course the RQ-170 is a million times more powerful than a Walmart toy, but the fact of the matter is that any government that wants to can put surveillance drones in the sky.